Sensitivity enhancement of SPR fiber probes

Eduardo Fontana

doi:10.1117/12.384893

3 May 2000 Sensitivity enhancement of SPR fiber probes

Eduardo Fontana

Proceedings Volume 3911, Biomedical Diagnostic, Guidance, and Surgical-Assist Systems II; (2000) https://doi.org/10.1117/12.384893
Event: BiOS 2000 The International Symposium on Biomedical Optics, 2000, San Jose, CA, United States

Abstract

A novel optical fiber sensor is prosed for use in chemical analysis. The sensor probe is made of a gold coated multimode optical fiber, configured to exhibit surface plasmon resonance (SPR) when immersed on a set environment. The proposed detection strategy comprises measurement of the image pattern irradiated by the fiber under monochromatic illumination. A theoretical model is prosed to determine device performance. From computer simulations it is shown that the proposed configuration and detection strategy allows reaching a 30-fold enhancement in sensitivity relative to that obtained in previous SPR-based versions of the device.

Citation Download Citation

Eduardo Fontana "Sensitivity enhancement of SPR fiber probes", Proc. SPIE 3911, Biomedical Diagnostic, Guidance, and Surgical-Assist Systems II, (3 May 2000); https://doi.org/10.1117/12.384893

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